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- W4313462910 abstract "Modified surfaces of poly(ethylene terephthalate) (Mylar® or PET film) have been studied by surface energetics, ESCA, atomic force microscopy (AFM), and optical profilometry. For the surface energetics studies, receding contact angle titrations were used to evaluate the surface functional groups in the outer few angstroms of the surface. This sensitive method of determining the contact angle with buffer solutions of different pHs allows one to investigate the nature of the chemical species introduced by the various energetic treatments. The data are consistent with a surface that is covered by a low density of carboxylic acid moieties in the case of corona and flame treatments, applied in a high-speed commercial type of a process at low doses. The high contact angle hysteresis indicates that the coverage is moderately heterogeneous but on a very small length scale, less than a few micrometers. ESCA qualitatively supported this, although this technique is not optimum for the low degrees of surface modification. A comparison is made of the two surface treatments in terms of depth of penetration, roughness, and surface density of chemical moieties introduced. UV laser-treated surfaces showed no indication of surface chemical modification." @default.
- W4313462910 created "2023-01-06" @default.
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- W4313462910 date "2023-01-03" @default.
- W4313462910 modified "2023-10-14" @default.
- W4313462910 title "Surface analysis of polyester film modified by flame and corona surface treatments" @default.
- W4313462910 doi "https://doi.org/10.1201/9780429070297-8" @default.
- W4313462910 hasPublicationYear "2023" @default.
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